sht sla slb slc sle slf slh sll slo sls slt slx soa sob soc soe sof soh sol soo sos sot sox ss- ssa ssb ssc sse ssf ssh ssl sso sss sst ssx sta stb stc ste stf sth stl sto sts stt stx sxc sxl sxs sxt t-x taa tab tac tae taf tah tal tao tas tat tax tba tbb tbc tbe tbf tbh tbl tbo tbs tbt tca tcb tcc tce tcf tch tcl tco tcs tct tcx te- tea teb tec tee tef teh tel teo tes tet tex tfa tfb tfc tfe tff tfh tfl tfo tfs tft tfx th- tha thb thc the thf thh thl tho ths tht thx tla tlc tle tlf tlh tll tlo tls tlt tlx to- toa tob toc toe tof toh tol too tos tot tox tsa tsb tsc tse tsf tsh tsl tso tss tst tsx tta ttb ttc tte ttf tth ttl tto tts ttt ttx txe txf txl txs txt xaa xac xaf xal xas xat xbc xbe xbl xbx xcb xcf xch xcl xcx xee xel xes xet xex xfa xfe xfh xfl xfs xft xfx xht xla xlb xlf xls xlt xoa xoc xof xoo xos xot xox xsa xsb xsc xsl xss xst xtc xtf xts xtx xxl xxo xxx